Add cross-platform date and time handling

teambtcmap · May 22, 2024 · 1746d0f · 1746d0f
1 parent bd3fcd7
commit 1746d0f
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Showing 6 changed files with 18 additions and 6 deletions.
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
@@ -42,6 +42,8 @@ kotlin {
         }
         commonMain.dependencies {
             implementation(libs.kotlinx.serialization)
+            implementation(libs.kotlinx.datetime)
+
             implementation(libs.androidx.sqlite)
         }
     }

diff --git a/app/src/androidMain/kotlin/area/AreaJson.kt b/app/src/androidMain/kotlin/area/AreaJson.kt
@@ -1,11 +1,11 @@
 package area
 
 import json.toJsonArray
+import kotlinx.datetime.Instant
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.jsonObject
 import java.io.InputStream
-import java.time.ZonedDateTime
 
 data class AreaJson(
     val id: Long,
@@ -18,7 +18,7 @@ fun AreaJson.toArea(): Area {
     return Area(
         id = id,
         tags = tags!!,
-        updatedAt = ZonedDateTime.parse(updatedAt),
+        updatedAt = Instant.parse(updatedAt),
     )
 }
 

diff --git a/app/src/androidMain/kotlin/area/AreaQueries.kt b/app/src/androidMain/kotlin/area/AreaQueries.kt
@@ -2,6 +2,7 @@ package area
 
 import androidx.sqlite.use
 import db.Database
+import db.getInstant
 import db.getJsonObject
 import db.getZonedDateTime
 import java.time.ZonedDateTime
@@ -41,7 +42,7 @@ class AreaQueries(private val db: Database) {
                     Area(
                         id = it.getLong(0),
                         tags = it.getJsonObject(1),
-                        updatedAt = it.getZonedDateTime(2),
+                        updatedAt = it.getInstant(2),
                     )
                 } else {
                     null
@@ -67,7 +68,7 @@ class AreaQueries(private val db: Database) {
                             Area(
                                 id = it.getLong(0),
                                 tags = it.getJsonObject(1),
-                                updatedAt = it.getZonedDateTime(2),
+                                updatedAt = it.getInstant(2),
                             )
                         )
                     }

diff --git a/app/src/androidMain/kotlin/area/Area.kt → app/src/commonMain/kotlin/area/Area.kt b/app/src/androidMain/kotlin/area/Area.kt → app/src/commonMain/kotlin/area/Area.kt
@@ -1,9 +1,9 @@
 package area
 
-import java.time.ZonedDateTime
+import kotlinx.datetime.Instant
 
 data class Area(
     val id: Long,
     val tags: AreaTags,
-    val updatedAt: ZonedDateTime,
+    val updatedAt: Instant,
 )
diff --git a/app/src/commonMain/kotlin/db/SQLiteStatementExtensions.kt b/app/src/commonMain/kotlin/db/SQLiteStatementExtensions.kt
@@ -1,10 +1,15 @@
 package db
 
 import androidx.sqlite.SQLiteStatement
+import kotlinx.datetime.Instant
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.jsonObject
 
 fun SQLiteStatement.getJsonObject(columnIndex: Int): JsonObject {
     return Json.parseToJsonElement(getText(columnIndex)).jsonObject
+}
+
+fun SQLiteStatement.getInstant(columnIndex: Int): Instant {
+    return Instant.parse(getText(columnIndex))
 }
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
@@ -48,10 +48,14 @@ room = "2.7.0-alpha02"
 # Platform-agnostic JSON handling
 # https://github.com/Kotlin/kotlinx.serialization/releases
 serialization = "1.6.3"
+# Platform-agnostic date and time handling
+# https://github.com/Kotlin/kotlinx-datetime/releases
+datetime = "0.6.0"
 
 [libraries]
 kotlinx-coroutines = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-android", version.ref = "coroutines" }
 kotlinx-serialization = { module = "org.jetbrains.kotlinx:kotlinx-serialization-json", version.ref = "serialization" }
+kotlinx-datetime = { module = "org.jetbrains.kotlinx:kotlinx-datetime", version.ref = "datetime" }
 
 androidx-work = { module = "androidx.work:work-runtime-ktx", version.ref = "work" }
 androidx-navigation-fragment = { group = "androidx.navigation", name = "navigation-fragment-ktx", version.ref = "navigation" }